/** Usage : ... [-legacy=<port>] [-role=satellite|core] -- [<port>] <client options> */
public LocationManager(String name, String args) throws CommandException, IOException {
super(name, "System", args);
this.args = getArgs();
nucleus = getNucleus();
coreDomains = new CoreDomains(getCellDomainName(), getCuratorFramework());
if (this.args.hasOption("legacy")) {
legacy = new LegacyServer(this.args.getIntOption("legacy"));
} else {
legacy = null;
}
if (this.args.hasOption("role")) {
role = CellDomainRole.valueOf(this.args.getOption("role").toUpperCase());
switch (role) {
case CORE:
checkArgument(this.args.argc() >= 1, "Listening port is required.");
client = new CoreClient();
coreDomains.onChange(event -> invokeOnMessageThread(() -> client.update(event)));
break;
default:
client = new Client();
coreDomains.onChange(event -> invokeOnMessageThread(() -> client.update(event)));
break;
}
} else {
role = null;
client = null;
}
}
private boolean updateClient(Client c) {
if (c.isClosed()) {
listener.onClientClose(this, c, null);
return false;
}
try {
c.read();
c.update();
listener.onClientUpdate(this, c);
if (c.isReadyToSend()) {
c.send();
}
return true;
} catch (Exception e) {
listener.onClientClose(this, c, e);
c.close();
return false;
}
}
/*
* Handle a heap info message.
*/
private void handleHPIF(Client client, ByteBuffer data) {
Log.d("ddm-heap", "HPIF!");
try {
int numHeaps = data.getInt();
for (int i = 0; i < numHeaps; i++) {
int heapId = data.getInt();
@SuppressWarnings("unused")
long timeStamp = data.getLong();
@SuppressWarnings("unused")
byte reason = data.get();
long maxHeapSize = (long) data.getInt() & 0x00ffffffff;
long heapSize = (long) data.getInt() & 0x00ffffffff;
long bytesAllocated = (long) data.getInt() & 0x00ffffffff;
long objectsAllocated = (long) data.getInt() & 0x00ffffffff;
client
.getClientData()
.setHeapInfo(heapId, maxHeapSize, heapSize, bytesAllocated, objectsAllocated);
client.update(Client.CHANGE_HEAP_DATA);
}
} catch (BufferUnderflowException ex) {
Log.w("ddm-heap", "malformed HPIF chunk from client");
}
}
/*
* Handle a heap segment series end message.
*/
private void handleHPEN(Client client, ByteBuffer data) {
/* Let the UI know that we've received all of the
* data for this heap.
*/
// xxx todo: only seal data that belongs to the heap mentioned in <data>.
client.getClientData().getVmHeapData().sealHeapData();
client.update(Client.CHANGE_HEAP_DATA);
}
/*
* Handle the response from our REcent Allocation Query message.
*/
private void handleREAQ(Client client, ByteBuffer data) {
boolean enabled;
enabled = (data.get() != 0);
Log.d("ddm-heap", "REAQ says: enabled=" + enabled);
client
.getClientData()
.setAllocationStatus(enabled ? AllocationTrackingStatus.ON : AllocationTrackingStatus.OFF);
client.update(Client.CHANGE_HEAP_ALLOCATION_STATUS);
}
// ______________________________________Méthode qui met à jour la liste des messages recues d'un
// client
public synchronized void updatemsgs(Communication com) throws RemoteException {
C.update("[" + com.get_src() + "] : " + com.get_msg());
}
/*
* Handle a REcent ALlocation response.
*
* Message header (all values big-endian):
* (1b) message header len (to allow future expansion); includes itself
* (1b) entry header len
* (1b) stack frame len
* (2b) number of entries
* (4b) offset to string table from start of message
* (2b) number of class name strings
* (2b) number of method name strings
* (2b) number of source file name strings
* For each entry:
* (4b) total allocation size
* (2b) threadId
* (2b) allocated object's class name index
* (1b) stack depth
* For each stack frame:
* (2b) method's class name
* (2b) method name
* (2b) method source file
* (2b) line number, clipped to 32767; -2 if native; -1 if no source
* (xb) class name strings
* (xb) method name strings
* (xb) source file strings
*
* As with other DDM traffic, strings are sent as a 4-byte length
* followed by UTF-16 data.
*/
private void handleREAL(Client client, ByteBuffer data) {
Log.e("ddm-heap", "*** Received " + name(CHUNK_REAL));
int messageHdrLen, entryHdrLen, stackFrameLen;
int numEntries, offsetToStrings;
int numClassNames, numMethodNames, numFileNames;
/*
* Read the header.
*/
messageHdrLen = (data.get() & 0xff);
entryHdrLen = (data.get() & 0xff);
stackFrameLen = (data.get() & 0xff);
numEntries = (data.getShort() & 0xffff);
offsetToStrings = data.getInt();
numClassNames = (data.getShort() & 0xffff);
numMethodNames = (data.getShort() & 0xffff);
numFileNames = (data.getShort() & 0xffff);
/*
* Skip forward to the strings and read them.
*/
data.position(offsetToStrings);
String[] classNames = new String[numClassNames];
String[] methodNames = new String[numMethodNames];
String[] fileNames = new String[numFileNames];
readStringTable(data, classNames);
readStringTable(data, methodNames);
// System.out.println("METHODS: "
// + java.util.Arrays.deepToString(methodNames));
readStringTable(data, fileNames);
/*
* Skip back to a point just past the header and start reading
* entries.
*/
data.position(messageHdrLen);
ArrayList<AllocationInfo> list = new ArrayList<AllocationInfo>(numEntries);
for (int i = 0; i < numEntries; i++) {
int totalSize;
int threadId, classNameIndex, stackDepth;
totalSize = data.getInt();
threadId = (data.getShort() & 0xffff);
classNameIndex = (data.getShort() & 0xffff);
stackDepth = (data.get() & 0xff);
/* we've consumed 9 bytes; gobble up any extra */
for (int skip = 9; skip < entryHdrLen; skip++) data.get();
StackTraceElement[] steArray = new StackTraceElement[stackDepth];
/*
* Pull out the stack trace.
*/
for (int sti = 0; sti < stackDepth; sti++) {
int methodClassNameIndex, methodNameIndex;
int methodSourceFileIndex;
short lineNumber;
String methodClassName, methodName, methodSourceFile;
methodClassNameIndex = (data.getShort() & 0xffff);
methodNameIndex = (data.getShort() & 0xffff);
methodSourceFileIndex = (data.getShort() & 0xffff);
lineNumber = data.getShort();
methodClassName = classNames[methodClassNameIndex];
methodName = methodNames[methodNameIndex];
methodSourceFile = fileNames[methodSourceFileIndex];
steArray[sti] =
new StackTraceElement(methodClassName, methodName, methodSourceFile, lineNumber);
/* we've consumed 8 bytes; gobble up any extra */
for (int skip = 9; skip < stackFrameLen; skip++) data.get();
}
list.add(
new AllocationInfo(classNames[classNameIndex], totalSize, (short) threadId, steArray));
}
// sort biggest allocations first.
Collections.sort(list);
client.getClientData().setAllocations(list.toArray(new AllocationInfo[numEntries]));
client.update(Client.CHANGE_HEAP_ALLOCATIONS);
}